Gas-heater



A. LEISTMANN.

GAS HEATER.

APPLICATION FILED MAR. 2, 1920.

1,346,456, Patented July 13, 1920.

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.zilfi'edlez'a'imiziz A. LEISTMANNL GAS HEATER. APPHCATION FILED MAR. 2'1920.

Patented July 13, 1920.

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wwwto'v 51 iZ/MJJZZYZW UNITED STATES PATENT OFFICE.

ALFRED LEISTMANN, OF BROOKLYN, NEW YORK.

GAS-HEATER.

Application filed March 2. 1920.

To all whom it may concern Be it known that I, ALFRED LnisTMANN, acitizen oi? the United States, residing at Brooklyn, in the county ofKings and State 01'. New York, have invented a new and usefulGas-Iileater, of which the following is a specification.

This invention relates to new and useful improvements in heating stoves,and more particularly to portable stoves of this character especiallyadapted for burning gaseous fuel.

The primary object of the invention is to provide a. heating stovehaving means to increase the heating surface thereof, thus insuring themaximum amount of heat from a given quantity of fuel.

:1. "further object of the invention is to provide a stove wherein theelements thereof may be readily and easily removed and replaced, in theevent that it becomes neces sary to repair or clean the same.

1Vith the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed, may be made within thescope of what is claimed, without departing from the spirit of theinvention.

Referring to the drawings Figure 1 illustrates a longitudinal sectionalview through a stove constructed in accordance with the presentinvention.

Fig. 2 illustrates a plan view, the upper plate of the stove being shownas partly broken away, and V Fig. illustrates a fragmental detail viewoi the mixing chamber of the burner.

Referring to the drawings in detail, the reference character 1designates the outer casing of the stove, the same being preferablycircular in cross section, but it is to be understood that the design ofthe stove may be changed to meet various requirements of use.

A supporting collar 2, provides the support for the outer casing 1, theflange formed adjacent the lower end of thecollar 2, and indicated byreference character 3 forming an abutment for the lower extremity of thelower casing 1.

T his supporting collar 2 embraces av portion of each of the supportinglegs 4, ad

Specification of Letters Patent.

Patented July 13, 15120.

Serial No. 362,695.

jacent the upper extremity thereof,.and as shown the supporting collar 2is provided with openings disposed in registry with suitable openingsformed in thelegs 4, which openings are also in registry with openingsformed in the outer casing 1, to accommodate the bolts 5, whereby theouter section 1, collar 2, and legs 4 may be rigidly secured together.

Extending inwardly from the legs at are the lugs 6, which lugs providesupports for the protecting plate '7, which is formed of suitable heatresisting material, and adapted to protect the surface on which thestove is supported from the heat radiating from the stove proper.

Having connection with the inner side wall of the legs 4, adjacent theupper end thereof, isa tubular inner casing 8 which is secured to thelegs 4: by means of the bolts 5, the bolts 9 being also provided forsecuring the inner'section 8 in proper spaced relation with the outercasing 1, thus providing an annular heat passageway 10.

Formed integral'with the outer casing 1, is a relatively flat top 11provided with a series of openings 12disposed in suitable spacedrelation with each other adjacent the periphery of the outer casing 1,the openings being. however provided directly over the annular heatpassageway 10 to permit the heat radiating from the inner section 8 topass upwardly through the openings 12.

Anopening 13 is formed in the stove top 11, substantially centrallythereof, and accommodates the upper extremity of the burner supportingrod 14, the upper end of said rod being threaded to receive the knob 15,the lower end of which is adapted to contact with the upper surface ofthe top 11 to support the rod 14 in proper relation with the inner wallsof the inner section 8.

As shown, the lower end of the rod 14 is threaded to cooperate withsuitable threads formed on the wall of the opening 16 of the burner 17,whereby the burner may be secured to the rod 14.

v Embracing the rod 141, are a plurality of spacing collars 18 that aredisposed throughout the length of the rod, which collars are providedfor supporting the baffle plates 19, in suitable spaced relation witheach other, the battle plates being shown as clamped between adjacentcollars. Openings 20 are formed in each of the battle plates 19 anddisposed in a manner so that the openings of one plate lie directlyunder the openings of the adjacent plate to permitthe heat to passupwardly through the openings.

The burner may be of any predetermined configuration but as shown, thesame coinprises a plurality oi arms 21 having the upper surfaces thereofapertured as at 22 to permit the gas entering the burnerproper V to passoutwardly therethrough. Supported adjacent the lower :end of the stoveproper 1s a mixing chamber comprising the lnner pipe 23 naving threadedconnection with the burner, as at 2d, the pipe 23 being provided with'anelongated opening 25 formed in the upper surface thereof, which openingis ada ited to re ister with the ooenin 26 formed in the adjustablesleeve 27, whereby the amount of air entering the mixing cha nber may beregulated according to the supply of fuel passing therethrough.

Secured to the opposite end ofthe pipe 23 is the thinible 28 having areduced portion 29 provided with internal threads to accommodatethethreadsof the connecting pipe 30, the discharge nozzle 31 beingremovably supported within one end of the pipe 30 and having itsdischarge end terminating at-a point adjacent one end of the elongatedopening 25, so that the air entering the mixing chamber, directlycontacts with the fuel from the discharge nozzle. I

A finishing ring 32 is supported by top 11' and is provided with adownwardly curved flange 33 which ring is adapted'to partially cover theopenings 12 to increase the draft through the openings. Y

In the operation of the device it is of course apparent that a suitablevalve is employed'lor controlling the supply of gaseous fuel, to-theburner proper, which valve is opened to permit a predetermined quantityof fuel to pass into the burner. The burner is lighted with the resultthat the heat generated by the burner passes upwardly contacting withthe battle plates to heat the same, thereby increasing the heatingsurface of the stove. V

Havmg thus described the 1nvent1on, what I claim as new is 1. A heaterincluding supporting legs, an

outer cylindrical casing having connection with the supporting legs, aninner casing having connection with the supporting legs and disposed inspaced relation with the outer casing, a cover, said cover having aplurality of openings formed therein, a supporting rod having oneextremity disposed in one of the openings of the cover, burner havingthreaded connection with one end of one end of the supporting rod,and'means for feeding iuelto the burner. 7

i8. iL heater including supporting legs, an outer and an inner casinghaving connection with the supporting legs, said casings being disposedin spaced relation with each other, a cover for the casings, said "coverhaving a central opening, a supporting rod having one extremity threadedand extending through the opening, a knob positioned on theupper end ofthe supporting rod for securing therod to the cover, thelower end of Isaid supporting rod terminating at a point adjacent the lower end of thecasings, a burner having threaded connection withthe lower end of thesupporting rod, a plurality ot spaced baffle plates disposed on thesupporting rod, and a collar positioned between each of the bailieplates, and means for supplying fuel to the burner.

"In testimony that I claim the foregoing as my own I have hereto affixedmy "signature in'the presence of two witnesses.

I ALFRED LEISTMANN,

WVitnesses: PATRICK MoVEY,

JonN CUTHBERTSON.

